As Chris mentions in his post on Curbly, the now-classic Richard Neutra-designed house numbers are still in production, but if you have the need to save some money and the desire to show off your handiwork, a set of 4 of these will set you back less than half ($20) of the cost of just one of the aluminum numbers ($48 each).
CHECK OUT THE STEP-BY-STEP PROJECT:
• How To: Make Your Own Mid-Century Modern House Numbers | Curbly
MORE NEUTRA HOUSE NUMBERS ON APARTMENT THERAPY:
• Neutra House Numbers